A Project Manager is in the execution phase of a highly visible project and a major milestone is due in three weeks. The Project Manager has discovered that a vendor's deliverable for this milestone w

Hiding a known risk to a major milestone from status meetings is a violation of transparency and professional responsibility.

With the milestone due in three weeks and the vendor five weeks behind, the PM must proactively engage the team to identify a workaround - such as resequencing work, using partial deliverables, or finding an alternate source - to mitigate the impact. This reflects PMI's emphasis on proactive issue resolution during project execution. Brainstorming with the team leverages collective expertise to find the most viable path forward before the milestone is missed.

Halting payments to the vendor may be a contractual remedy but does not solve the immediate schedule problem and should only follow formal contract dispute processes.

Simply reporting the missed milestone without taking corrective action is reactive rather than proactive and leaves the project without a recovery plan.